<tr th:each="ls,cpStat : ${student_list}">
    <td><input type="checkbox"></td>
    <td style="text-align: left;" th:text="${ls.user_name}"></td>
    <td th:text="${ls.create_time}"></td>
    <td>
        <a href="javascript:;" th:onclick="student_answers([[${ls.id}]],[[${question_id}]])"
           class="layui-btn layui-btn-mini">答题列表</a>
    </td>
</tr>